The Process Off-site production creates much of the house in the controlled environment of a modern factory, leaving as little as possible to the vagaries of the weather, to messy site conditions and to on-site labour skills. This allows for greater quality control, with all components precision made and fitted. Each unit is a well engineered product. Doors and windows fit perfectly and performance warranties come from a single source. ecoTECH delivers quality assured factory fitting of : Insulation Vapour membranes Damp-proof courses Electrical ducting, so internal walls have a perfect finish Windows and doors This leads to an improved energy performance through increased air-tightness and the avoidance of cold bridging. Computer modeling and performance testing of design options can deliver measurable benefits from passive solar gain, passive ventilation and thermal massing.